{
  "cveId": "CVE-2026-98574",
  "url": "https://patchblox.com/security/cve/CVE-2026-98574",
  "summary": "CVE-2026-98574 is fixed in linux on 1 platform by DEBIAN-CVE-2026-98574 (version 7.2.9-1), released October 19, 2026. It is not reported as exploited. Patch Radar priority: Routine.",
  "title": "net: bcmgenet: stop Tx NAPI before disabling the queues",
  "description": "In the Linux kernel, the following vulnerability has been resolved:  net: bcmgenet: stop Tx NAPI before disabling the queues  bcmgenet_netif_stop() and the Wake-on-LAN branch of bcmgenet_suspend() both disable the Tx queues first and stop Tx NAPI several steps later. A completion in flight calls netif_tx_wake_queue() in between, and nothing stops the queue again, so a transmit can reach the rings after they have been freed.  Close is safe because dev_deactivate_many() stops the qdisc first. bcmgenet_suspend() does not, so stop Tx NAPI before the queues on both paths.  KASAN on a Raspberry Pi CM4, driven from an MTU change because suspend freezes user space before the callback runs:    BUG: KASAN: use-after-free in bcmgenet_xmit\u002B0x17f8/0x2258   Write of size 8 at addr ffffff8055844a68 by task ksoftirqd/0/14    bcmgenet_xmit\u002B0x17f8/0x2258    dev_hard_start_xmit\u002B0x13c/0x588    sch_direct_xmit\u002B0x108/0x340    __dev_queue_xmit\u002B0x1190/0x3848",
  "published": "2026-10-18T16:17:09Z",
  "severity": "",
  "epss": 0.00198,
  "epssPercentile": 0.09634,
  "priority": "Routine",
  "priorityTier": 4,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "vendorAdvisory": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-98574",
  "fixes": [
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 14",
      "fixedVersion": "7.2.9-1",
      "fix": "DEBIAN-CVE-2026-98574",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-98574",
      "released": "2026-10-19T16:27:52Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-08T06:59:42Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}